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   <div id="projectname">PU2CLR Si4735 Arduino Library<span id="projectnumber">&#160;2.1.4</span>
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   <div id="projectbrief">Arduino Library for Si47XX Devices - By Ricardo Lima Caratti</div>
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<div><div class="header">
  <div class="headertitle"><div class="title">SI47XX Arduino Library implementation </div></div>
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<div class="textblock"><p>This is a library for the SI473X and SI474X, BROADCAST AM/FM/SW RADIO RECEIVER, IC from Silicon Labs for the Arduino development environment. It works with I2C protocol and provides an easy-to-use interface for controlling the SI47XX IC family.<br  />
</p>
<p>This library was built based on <a href="https://www.silabs.com/documents/public/application-notes/AN332.pdf">Si47XX PROGRAMMING GUIDE-AN332 (REV 1.0)</a> document from Silicon Labs.</p>
<p>It also can be used on <b>all members of the SI473X and SI474X family</b>, though the features you can use depend on which IC version you have. The functionality of each IC is outlined in the comparison matrix in table 1 (Product Family Function); pages 2 and 3 of the programming guide. If you need to build a prototype based on SI47XX device, see <a href="https://pu2clr.github.io/SI4735/">https://pu2clr.github.io/SI4735/</a><br  />
</p>
<p>This library has more than 30 examples, and it can be freely distributed using the MIT Free Software model. <a href="https://pu2clr.github.io/SI4735/#mit-license">Copyright (c) 2019 Ricardo Lima Caratti</a>. Contact: <a href="#" onclick="location.href='mai'+'lto:'+'pu2'+'cl'+'r@g'+'ma'+'il.'+'co'+'m'; return false;">pu2cl<span class="obfuscator">.nosp@m.</span>r@gm<span class="obfuscator">.nosp@m.</span>ail.c<span class="obfuscator">.nosp@m.</span>om</a></p>
<p>This library uses the I²C communication protocol and implements most of the functions offered by Si47XX (BROADCAST AM / FM / SW / LW RADIO RECEIVER) IC family from Silicon Labs.</p>
<p>The main features of this library are listed below.</p>
<ol type="1">
<li>Open Source. It is free. You can use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software. See <a href="https://pu2clr.github.io/SI4735/#mit-license">MIT License</a> to learn more.</li>
</ol>
<ol type="1">
<li>Built Based on <a href="https://www.silabs.com/documents/public/application-notes/AN332.pdf">Si47XX PROGRAMMING GUIDE</a>.</li>
</ol>
<ol type="1">
<li>C++ Language and Object-oriented programming. You can easily extend the <a class="el" href="class_s_i4735.html" title="SI4735 Class.">SI4735</a> class if you need new functionality.</li>
</ol>
<ol type="1">
<li>Available on Arduino IDE (Manage Libraries).</li>
</ol>
<ol type="1">
<li>Cross-platform. You can compile and run this library on most of boards which Arduino IDE supports (Examples: ATtiny85, boards based on ATmega328 and ATmega-32u4, ATmega2560, 32 ARM Cortex, Arduino DUE, ESP32 and more). See <a href="https://pu2clr.github.io/SI4735/#boards-where-this-library-has-been-successfully-tested">Boards where this library has been successfully tested</a>.</li>
</ol>
<ol type="1">
<li>Simplifies projects based on SS4735-D60, SI4732-A10, SI4730-D60, and other SI473X devices;</li>
</ol>
<ol type="1">
<li>I²C communication and Automatic I²C bus address detection.</li>
</ol>
<ol type="1">
<li>More than 120 functions implemented. You can customize almost every feature available on Si47XX family.</li>
</ol>
<ol type="1">
<li>RDS support.</li>
</ol>
<ol type="1">
<li>SSB (Single Side Band) patch support (SI4735-D60 and SI4732-A10).</li>
</ol>
<ol type="1">
<li>Digital Audio (<b>Attention</b>: Crystal and digital audio mode cannot be used at the same time).</li>
</ol>
<ol type="1">
<li>More than 30 example available. See <a href="https://github.com/pu2clr/SI4735/tree/master/examples">https://github.com/pu2clr/SI4735/tree/master/examples</a><br  />
</li>
</ol>
<p>Some texts were extracted directly from the Silicon Labs documentation. The name of the Silicon Labs document and pages are described in the source code comments.</p>
<dl class="section see"><dt>See also</dt><dd><a href="https://pu2clr.github.io/SI4735/">General Documentation</a> </dd>
<dd>
<a href="https://pu2clr.github.io/SI4735/extras/schematic/">Schematics</a> </dd>
<dd>
Si47XX PROGRAMMING GUIDE AN332 (REV 1.0): <a href="https://www.silabs.com/documents/public/application-notes/AN332.pdf">https://www.silabs.com/documents/public/application-notes/AN332.pdf</a> </dd>
<dd>
AN332 REV 0.8 UNIVERSAL PROGRAMMING GUIDE; AMENDMENT FOR SI4735-D60 SSB AND NBFM PATCHES</dd></dl>
<dl class="section author"><dt>Author</dt><dd>PU2CLR - Ricardo Lima Caratti </dd></dl>
<dl class="section date"><dt>Date</dt><dd>2019-2022 </dd></dl>
<dl class="section copyright"><dt>Copyright</dt><dd>MIT Free Software model. See <a href="https://pu2clr.github.io/SI4735/#mit-license">Copyright (c) 2019 Ricardo Lima Caratti</a>. </dd></dl>
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